Improvement in processes for treating wood for paving and other purposes



UNITE STATES PATENT OFFICE.

ALBERT BRISBANE, OF NEW YORK, N. Y. 7

IMPROVEMENT IN PROCESSES FOR TREATING WOOD FO R PAVING AND OTHERPURPOSES.

Specification forming part of Letters Patent No. 155,788, dated October13, 1874; application filed March 7, 1874.

T00 whom it may concern.-

Be it known that I, ALBERT BRISBANE, of New York, in the county of NewYork and State of New York, have invented certain new and usefulProcesses for Treating Wood for Pavements and other purposes; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as Will enable others skilled in the art to whichit pertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to Wooden pavements; and the invention consists inrendering the wood to be used for such purposes compact, impervious, anddurable by first impregnating it thoroughly with coal-oil or other heavyhydrocarbon, and then subjecting it to pressure, so as to make it solid,or reduce it to a consistency of compact hardness capable of often inggreat resistance to Wear.

To make my improved wood for pavements,

I take any description of Woodthe soft and porous varieties answeringequally as well, if not better, than the harder. It is then sawed intoblocks, of size convenient to be operated upon, and suitable to beafterward reduced to the required form in molds. I then thoroughlyimpregnate the blocks with coal-tar, by-any of the well-known processesof saturation. When thoroughly saturated, the blocks are thentransferred to molds of the required February, 1874.

ALBERT BRISBANE. Witnesses: v

J ONA. AUsTIN, H. B. WHEATCROFT.

